Wire-stripping machine.



No. 843,353. PATENTED FEB. 5,1907. H. E. MOKENNA- WIRE STRIPPINGMACHINE.

APPLICATION FILED APR. 2. 1906.

Sim/92 431 f a Zap? (me HARVY EARL McKENNA, OF DONORA, PENNSYLVANIA.

WIRE'FSTRPPING MACHINE.

Specification of Letters Patent.

Patented Feb. 5, 1907.

Application filed April 2, 1906. Serial No. 309.429.

To all whom it may concern.-

Be it known that I, HARVY EARL Mo- KENNA, a citizen of the United Statesof America, residing at Donora, in the county of Washington and State ofPennsylvania, have invented certain new and'useful lmprovements inWire-Stripping Machines, of which the following is a specification,reference being had thereinto the accompanying drawings.

This invention relates to certain new and useful improvements inwire-stripping machines or devices; and the invention has for itsprimary object the provision of novel means for removing the insulationor binding from a wire or cable.

Another object of this invention is to provide a simple and effectivedevice for removing the insulation or binding of wires or cables insections, the device being easily and quickly operated to accomplish theabove result.

A further object of this invention is to provide a manually-operateddevice having a vertically reciprocating or adjustable cutterheadadapted to impinge upon a piece of wire and sever the insulation orbinding thereof when the piece of wire is rotated or turned within thedevice. W

The detail construction entering into my invention will be hereinaftermore fully described and specifically claimed.

Referring to the drawings accompanying this application, like numeralsof reference designate corresponding parts throughout the several viewsof the drawings, in which Figure 1 is a perspective view of my improveddevice. view of the same, and Fig. 3 is a perspective view of thecutter-head of the device.

To put my invention into practice, I construct the device of two sideframes 1 1, the lower ends of the frames being cut away, as at 2, toform hook-shaped supports 3 3. Between the supports is arranged atransverse curved plate 4, while between the upper ends of the frames 11 is secured a head-plate 5, said plate being secured to the frames 1 1by screws 6 or similar fastening means.

The confronting sides of the frames 1 1 are provided with wedge-shapedgrooves 7 7, and in said grooves is mounted a cutter-head 8. Thevertical edges of the cutter-head are beveled, as at 9 9, to engage inthe grooves 7 7. The top edge of the cutter-head 8 is slotted andrecessed, as at 10, to receive the Fig. 2 is a vertical sectionalheadedend 11 of a vertically-disposed screw 12, said screw passing through theheadplate 5 and carrying a suitable handle or lever 14 upon its upperend, whereby the head 8 can be easily and quickly raised and loweredbetween the frames 1 1.

The loweredge of the head 8 is beveled to form a knife blade or edge 15,while the beveled edges 9 9 of the head are provided at their low erends with cutters 16 16.

When it is desired to strip a piece of wire or a cable 17 of itsinsulation or binding 18, the pieces of Wire are placed upon thesupports3 3 and the plate 4, at which time the cutter-head 8 is lowered toengage the wire or cable 17. By forcing the cutter-head 8 intoengagement with the insulation or binding 18 of the wire or cable theinsulation or binding is severed longitudinally by the knife blade oredge 15 of the cutter-head, while the cutters 16 16 enter the insulationor binding 18. When the wire or cable is rotated, the cutters 16 16sever the insulation 18, while the knife blade or edge 15 servesfunctionally to strip the wire or cable 17 of the severed piece ofinsulation or binding.

1 do not care to confine myself to the use of the screw 12 forreciprocating or raising or lowering the cutter-head, as an eccentric,cam, or other equivalent may be used in lieu of the screw 12.

I preferably construct my improved device of strong and durable metal,and where the device is not being used as a figrture secured to asuitable support it can be readily carried in a linemans kit forsevering the insulation or binding of wires or cables.

Such changes in the details of construction as are permissible by theappended claims may be resorted to without departing from the spirit andscope of the invention.

Having fully described my invention, what I claim is 1. A stri pingdevice for wire, consisting of a framefhook-shaped supports carried bysaid frame, a curved plate carried by said supports, a cutter-headslidably mounted in said frame and having a knife-edge, transversecutters carried by said head, and means supported by said frame to raise'and lower said head, substantially as described.

2. A strip ing device for wire, consisting of a frame ad apted tosupport a piece of wire, a cutter-head slidably mounted in said frameand having a longitudinally-disposed knife-edge, transverse cutterscarried by said head, and means carried by said frame to move saidcutters and said knife-edge into engagement with a piece ofwiresupported by said frame, substantially as described.

3. A wire-stripping device eoiriprising, a frame, cut away in the frontand provided at its lower end with a support for thewire to be stripped,a cutter-head reciprocable in the frame toward and away from thewire-sup- I port and provided with a knife-edge, cutters carried by saldcutter-head at the ends of the knife-edge, and means operaingthrough'the head of said frame and engaging the cutterhead for reelroca'i m the latter 1n the frame.

a u u h u o n 4.. A wlre-strippmg device comprising a frame, embodying,side frames cut away on the front and provided at their lower ends.

with Wire-supports, a head connecting the side frames at their upperends, and each side verse cutte'rs carried by said head, and operaiingmeans mounted in the head and engaging the cutter-head for ac'iuai ingthe latter.

In iesf imony whereof I allix my signature in the presence of twowitnesses.

IIARVY EARL hit/KEN NA. Witnesses WM. G. IIoPToN, J. H. DAUGIIERTY.

